Knox Bros: Quality, Service, Experience


At Knox Bros Auto Parts we’re an independent, locally owned supplier of quality CARQUEST auto parts.

Our trained staff is here to answer any questions you may have and help you find the part you need to get the job done right the first time. With our superior customer service to both professional technicians and do-it-yourselfers and three locations in the state of Maine, we are the destination for auto parts!

Our showrooms are located in Belfast, Rockport, and Rockland, Maine. Each store is stocked full of quality CARQUEST auto supplies and if we don’t have it in stock we can special order it for you.


CARQUEST: Proudly Serving a World in Motion


CARQUEST is the premier supplier of replacement parts, accessories, supplies and equipment for virtually all makes of automobiles, as well as light and heavy-duty trucks, off-road equipment, busses, recreational vehicles and agricultural equipment. Additionally, we distribute and sell tools, equipment, chemicals, paint and accessories.

We now carry parts & products for heavy duty trucks!


CARQUEST brand products consist of well over 30 different complete product lines covering virtually every part needed for any repair or maintenance job on any passenger car, truck and off road vehicle. At Knox Bros we carry all the CARQUEST products you need, including parts for:

  • Brakes
  • Drivetrain
  • Engine
  • Engine Performance & Emission Control
  • Electrical & Vision
  • Steering & Suspension
  • Temperature Control & Cooling
  • Fleet & Heavy-Duty
  • Auto Accessories
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If you are an automotive repair facility and need an auto parts store you can rely on, then you have found the right one. Let us show you how you can have the right parts delivered to your door at the right time. We’re just a phone call away for our customers!